body{
    background-color: #000000; 
}
h1,p{
    margin: 0;
    padding: 0;
}
/*媒介查询*/
@media screen and (min-width: 1200px) {
    h1{color: blue }
    .wrapper {
        width: 1328px;
        margin: 0 auto ;
        background-color: #ffffff;
    }
    .header {
        width: 1328px;
        margin: 0 auto ;
        background-color: #c82333;
    }
.main{
    width: 1328px;
    margin: 0 auto ;

}
.footer {
    width: 1328px;
    margin: 0 auto ;
    background-color: #fff211;
    min-height: 80px;
}
.sidebar {
    float: left;
width: 1078px;
    background-color: aqua;
    min-height: 600px;
}
    .content {
        float: left;
        width: 1078px;
        background-color: red;
        min-height: 600px;

}
}
@media screen and (min-width: 768px) and (max-width: 979px){
    h1{color: olive }

}